Home / 120,928.32-166,882.56-67,219.20

Finding the Fourth Proportional to 120,928.32, 166,882.56 and 67,219.20

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Solution

The fourth proportional to 120,928.32, 166,882.56 and 67,219.20 is: 92,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,928.32 : 166,882.56 = 67,219.20 : x
  2. Step 2: Convert to fraction form
    120,928.32/166,882.56 = 67,219.20/x
  3. Step 3: Cross multiply
    120,928.32x = 166,882.56 × 67,219.20
  4. Step 4: Simplify right side
    120,928.32x = 11,217,712,177.15
  5. Step 5: Solve for x
    x = 11,217,712,177.15/120,928.32
  6. Step 6: Final answer
    x = 92,763.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.